WASP-43b: the closest-orbiting hot Jupiter

C. Hellier; D.~R. Anderson; A. Collier Cameron; M. Gillon; E. Jehin; M. Lendl; P.~F.~L. Maxted; F. Pepe; D. Pollacco; D. Queloz; D. Ségransan; B. Smalley; A.~M.~S. Smith; J. Southworth; A.~H.~M.~J. Triaud; S. Udry; R.~G. West

doi:10.1051/0004-6361/201117081

WASP-43b: the closest-orbiting hot Jupiter

C. Hellier, D.~R. Anderson, A. Collier Cameron, M. Gillon, E. Jehin, M. Lendl, P.~F.~L. Maxted, F. Pepe, D. Pollacco, D. Queloz, D. Ségransan, B. Smalley, A.~M.~S. Smith, J. Southworth, A.~H.~M.~J. Triaud, S. Udry, R.~G. West

Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

92 Citations (Scopus)

Abstract

We report the discovery of WASP-43b, a hot Jupiter transiting a K7V star every 0.81 d. At 0.6-M$_⊙$ the host star has the lowest mass of any star currently known to host a hot Jupiter. It also shows a 15.6-d rotation period. The planet has a mass of 1.8 M$_Jup$, a radius of 0.9 R$_Jup$, and with a semi-major axis of only 0.014 AU has the smallest orbital distance of any known hot Jupiter. The discovery of such a planet around a K7V star shows that planets with apparently short remaining lifetimes owing to tidal decay of the orbit are also found around stars with deep convection zones.

Original language	English
Pages (from-to)	L7
Journal	Astronomy and Astrophysics
Volume	535
DOIs	https://doi.org/10.1051/0004-6361/201117081
Publication status	Published - 1 Nov 2011

Keywords

stars: individual: WASP-43, planetary systems

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10.1051/0004-6361/201117081

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Hellier, C., Anderson, D. R., Collier Cameron, A., Gillon, M., Jehin, E., Lendl, M., Maxted, P. F. L., Pepe, F., Pollacco, D., Queloz, D., Ségransan, D., Smalley, B., Smith, A. M. S., Southworth, J., Triaud, A. H. M. J., Udry, S., & West, R. G. (2011). WASP-43b: the closest-orbiting hot Jupiter. Astronomy and Astrophysics, 535, L7. https://doi.org/10.1051/0004-6361/201117081

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title = "WASP-43b: the closest-orbiting hot Jupiter",

abstract = "We report the discovery of WASP-43b, a hot Jupiter transiting a K7V star every 0.81 d. At 0.6-M$_⊙$ the host star has the lowest mass of any star currently known to host a hot Jupiter. It also shows a 15.6-d rotation period. The planet has a mass of 1.8 M$_Jup$, a radius of 0.9 R$_Jup$, and with a semi-major axis of only 0.014 AU has the smallest orbital distance of any known hot Jupiter. The discovery of such a planet around a K7V star shows that planets with apparently short remaining lifetimes owing to tidal decay of the orbit are also found around stars with deep convection zones. ",

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author = "C. Hellier and D.~R. Anderson and {Collier Cameron}, A. and M. Gillon and E. Jehin and M. Lendl and P.~F.~L. Maxted and F. Pepe and D. Pollacco and D. Queloz and D. S{\'e}gransan and B. Smalley and A.~M.~S. Smith and J. Southworth and A.~H.~M.~J. Triaud and S. Udry and R.~G. West",

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AU - Hellier, C.

AU - Anderson, D.~R.

AU - Collier Cameron, A.

AU - Gillon, M.

AU - Jehin, E.

AU - Lendl, M.

AU - Maxted, P.~F.~L.

AU - Pepe, F.

AU - Pollacco, D.

AU - Queloz, D.

AU - Ségransan, D.

AU - Smalley, B.

AU - Smith, A.~M.~S.

AU - Southworth, J.

AU - Triaud, A.~H.~M.~J.

AU - Udry, S.

AU - West, R.~G.

PY - 2011/11/1

Y1 - 2011/11/1

N2 - We report the discovery of WASP-43b, a hot Jupiter transiting a K7V star every 0.81 d. At 0.6-M$_⊙$ the host star has the lowest mass of any star currently known to host a hot Jupiter. It also shows a 15.6-d rotation period. The planet has a mass of 1.8 M$_Jup$, a radius of 0.9 R$_Jup$, and with a semi-major axis of only 0.014 AU has the smallest orbital distance of any known hot Jupiter. The discovery of such a planet around a K7V star shows that planets with apparently short remaining lifetimes owing to tidal decay of the orbit are also found around stars with deep convection zones.

AB - We report the discovery of WASP-43b, a hot Jupiter transiting a K7V star every 0.81 d. At 0.6-M$_⊙$ the host star has the lowest mass of any star currently known to host a hot Jupiter. It also shows a 15.6-d rotation period. The planet has a mass of 1.8 M$_Jup$, a radius of 0.9 R$_Jup$, and with a semi-major axis of only 0.014 AU has the smallest orbital distance of any known hot Jupiter. The discovery of such a planet around a K7V star shows that planets with apparently short remaining lifetimes owing to tidal decay of the orbit are also found around stars with deep convection zones.

KW - stars: individual: WASP-43, planetary systems

U2 - 10.1051/0004-6361/201117081

DO - 10.1051/0004-6361/201117081

M3 - Article

SN - 0004-6361

VL - 535

SP - L7

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

ER -

WASP-43b: the closest-orbiting hot Jupiter

Abstract

Keywords

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